Champion of the Weird, Flayer of the Hatebound, and Vein Ripper

Prerequisites

• Champion of the Weird on the battlefield
• Flayer of the Hatebound on the battlefield
• Vein Ripper on the battlefield

Steps

1. Activate Champion of the Weird by paying 1 life and putting two -1/-1 counters on Flayer of the Hatebound
2. Flayer of the Hatebound dies due to having 0 toughness, triggering its undying ability and Vein Ripper Resolve the Vein Ripper trigger, causing you to gain 2 life and causing an opponent to lose 2 life
3. Resolve the Flayer of the Hatebound trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it
4. When Flayer of the Hatebound enters, it triggers, dealing damage to any target
5. Resolve the Champion of the Weird ability from step 1, causing an opponent to blight 2
6. Activate Champion of the Weird by paying 1 life and putting two -1/-1 counters on Flayer of the Hatebound, causing an opponent to blight 2
7. Repeat

Results

• Infinite damage
• Infinite -1/-1 counters
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite sacrifice triggers